Deadbolt drive mechanism for a motor lock

Abstract

The utility model discloses a kind of vice lock transmission structures of motor lock, including main lock body and vice lock body, driving plate and driving motor are arranged in the main lock body, main lock tongue is connected on the driving plate, vice lock tongue and linkage plate are arranged in the vice lock body, the vice lock tongue is connected on linkage plate, linkage plate and vice lock body are along the sliding fit of main lock body width direction, swing is arranged in the vice lock and crank arm, one of the crank arm branch and linkage plate transmission connection, another branch is connected with traction plate, the traction plate is along the length direction of main lock body and is arranged, transmission plate is also arranged in the main lock body, transmission plate is along the length direction of main lock body and is fixedly connected with traction plate, obliquely arranged with guide groove on the transmission plate, guide block is arranged on the driving plate, the guide block and guide groove sliding fit. Its structure is simple and reasonable in layout, linkage is stable and reliable, with good use stability.

Description

Technical Field

[0001] This utility model relates to a secondary lock transmission structure for an electric motor lock. Background Technology

[0002] To ensure door lock security, existing door locks are generally equipped with a secondary lock to form double protection, improving anti-theft and reliability. However, the current linkage structure design between the secondary lock and the main lock is quite cumbersome, often relying on multi-stage transmission components, complex linkages, or gear meshing mechanisms for linkage control. This type of structure not only increases the assembly complexity and manufacturing cost of the door lock, but is also prone to linkage jamming or failure due to wear of transmission components and misalignment of fit clearances, seriously affecting the overall stability of the door lock structure and reducing its security and service life. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a secondary lock transmission structure for a motor lock, which has a simple and reasonable structure, stable and reliable linkage, and good operational stability.

[0004] To achieve the above objectives, this utility model provides a secondary lock transmission structure for a motor lock, including a main lock body and a secondary lock body. The main lock body is provided with a drive plate and a drive motor for driving the drive plate to slide along the width direction of the main lock body. A main lock tongue is connected to the drive plate. The secondary lock body is provided with a secondary lock tongue and a linkage plate. The secondary lock tongue is connected to the linkage plate. The linkage plate and the secondary lock body are slidably engaged along the width direction of the main lock body. A crank arm is oscillatingly provided in the secondary lock body. One arm of the crank arm is drivenly connected to the linkage plate, and the other arm is connected to a traction plate. The traction plate is arranged along the length direction of the main lock body. The main lock body is also provided with a transmission plate. The transmission plate is arranged along the length direction of the main lock body and is fixedly connected to the traction plate. A guide groove is inclinedly provided on the transmission plate. A guide block is provided on the drive plate. The guide block is slidably engaged with the guide groove.

[0005] The advantages of this design are as follows: The movement of the drive plate, via the guide groove, drives the transmission plate up and down, which in turn drives the traction plate. The traction plate's movement, in turn, drives the crank arm, thus actuating the secondary lock body and secondary bolt. Through the sliding cooperation of the guide block and the inclined guide groove, the lateral sliding of the drive plate is directly converted into the longitudinal movement of the transmission plate, eliminating the need for multi-stage transmission components. This simplifies the main and secondary lock linkage structure, reduces component wear and jamming risks, and significantly improves structural stability. Furthermore, the short transmission path and direct force transmission reduce energy loss, improve the response speed of the secondary bolt, and optimize the door lock opening and closing efficiency. The components are arranged along the length or width of the main lock body, resulting in a compact structure that saves installation space and is compatible with different door lock specifications. Simultaneously, the absence of complex gears or connecting rods simplifies assembly, reducing manufacturing and maintenance costs. The absence of rigid impact during the overall transmission process extends the service life of each component, reduces door lock opening and closing noise, and enhances the user experience.

[0006] As a further feature of this invention, the traction plate is provided with a traction groove, and the end of the crank arm is provided with a traction block, which is disposed in the traction groove and slides in cooperation with the traction groove.

[0007] The advantages of this design are as follows: The traction block and the traction groove slide together to form a flexible transmission connection, which can adapt to the trajectory deviations of the crank arm's swing and the longitudinal movement of the traction plate, avoiding the jamming or stress concentration problems that are prone to occur with rigid connections, thus further improving transmission reliability. The long groove structure increases the tolerance space for the fit, reduces the requirements for component machining and assembly precision, and reduces the risk of transmission failure caused by production and assembly errors. The sliding fit reduces contact wear, and the fit clearance can accommodate slight deformation, extending the service life of the traction plate and crank arm, while ensuring transmission stability after long-term use. Furthermore, the structure is simple and compact, without occupying additional installation space.

[0008] As a further feature of this utility model, the traction plate and the transmission plate are connected by a connecting plate. The connecting end of the traction plate and the connecting plate, as well as the connecting end of the transmission plate and the connecting plate, are respectively provided with a connector. The connector is provided with a pin, and the connecting plate is provided with a pin hole. The pin and the pin hole are engaged.

[0009] The advantages of this design are as follows: The insertion and connection between the pin and the pin hole are tight and secure, effectively preventing loosening or displacement during transmission and ensuring the stability and accuracy of force transmission; no complex fasteners are required, allowing for direct insertion and fixing during assembly and quick disassembly, significantly improving assembly and maintenance efficiency; by replacing connecting plates of different lengths or specifications, it can flexibly adapt to different installation sizes and models of door locks, significantly enhancing structural versatility and reducing the design and manufacturing costs of multi-specification products; the connection structure is simple and compact, does not occupy additional internal space of the door lock, is suitable for narrow installation environments, and has low component processing difficulty, further controlling production costs.

[0010] As a further feature of this invention, a first guide groove and a first guide block are provided between the main lock body and the transmission plate, and the first guide groove and the first guide block are in sliding engagement.

[0011] The advantages of this design are: the sliding cooperation between the first guide groove and the first guide block precisely limits the movement trajectory of the transmission plate, preventing deviation and wobbling during longitudinal movement, and greatly improving structural stability and transmission accuracy; the guide structure can disperse lateral forces during transmission, reduce component wear, and ensure smooth operation after long-term use; the structure is simple and does not occupy extra space, does not increase the complexity of door lock assembly, and balances practicality and economy.

[0012] As a further feature of this invention, a second guide groove and a second guide block are provided between the secondary lock body and the traction plate, and the second guide groove and the second guide block are slidably engaged.

[0013] The beneficial effects of this design are as follows: With this design, the second guide groove and the second guide block slide and cooperate to precisely constrain the longitudinal movement trajectory of the traction plate, preventing it from swaying or jamming during operation, and further enhancing the overall structural stability; it can also share the lateral stress transmitted by the traction plate, reduce component contact loss, and ensure smooth transmission and reliability after long-term use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structural arrangement of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the transmission layout of an embodiment of the present utility model; Figure 3 This is a schematic diagram of the transmission connection structure of the traction plate, drive plate and connecting plate in an embodiment of this utility model; Figure 4 This is a structural schematic diagram of the secondary lock position in an embodiment of this utility model. Detailed Implementation

[0015] This utility model provides an embodiment of a secondary lock transmission structure for a motor lock, such as... Figures 1 to 4 As shown, the lock includes a main lock body 1 and a secondary lock body 2. The main lock body 1 is provided with a drive plate 3 and a drive motor for driving the drive plate 3 to slide along the width direction of the main lock body 1. A main lock tongue 31 is connected to the drive plate 3. The secondary lock body 2 is provided with a secondary lock tongue 41 and a linkage plate 4. The secondary lock tongue 41 is connected to the linkage plate 4. The linkage plate 4 and the secondary lock body 2 are slidably engaged along the width direction of the main lock body 1. A crank arm 7 is oscillatingly provided in the secondary lock body 2. One arm of the crank arm 7 is drivenly connected to the linkage plate 4, and the other arm is connected to a traction plate 6. The traction plate 6 is arranged along the length direction of the main lock body 1. A transmission plate 5 is also provided in the main lock body 1. The transmission plate 5 is arranged along the length direction of the main lock body 1 and is fixedly connected to the traction plate 6. A guide groove 51 is inclinedly provided on the transmission plate 5. A guide block is provided on the drive plate 3. The guide block is slidably engaged with the guide groove 51. The beneficial effects of this configuration are as follows: With this configuration, the movement of the drive plate 3 drives the transmission plate 5 up and down via the guide groove 51, which in turn drives the traction plate 6 up and down. The up and down movement of the traction plate 6 then drives the crank arm 7, thereby driving the movement of the secondary lock body 2 and the secondary lock tongue 41. Through the sliding cooperation of the guide block and the inclined guide groove 51, the lateral sliding of the drive plate 3 is directly converted into the longitudinal movement of the transmission plate 5, eliminating the need for multi-stage transmission components, simplifying the main and secondary lock linkage structure, reducing component wear and jamming risks, and significantly improving structural stability. Furthermore, the short transmission path and direct force transmission reduce energy loss, improve the response speed of the secondary lock tongue 41, and optimize the door lock opening and closing efficiency. The components are arranged along the length or width of the main lock body 1, resulting in a compact structure that saves installation space and is compatible with different door lock specifications. Simultaneously, the absence of complex gears or connecting rods reduces assembly difficulty, lowering manufacturing and maintenance costs. The absence of rigid impact during the overall transmission process extends the service life of each component, while also reducing door lock opening and closing noise and improving the user experience.

[0016] As a further feature of this embodiment, the traction plate 6 is provided with a traction groove 61, and the end of the crank arm 7 is provided with a traction block. The traction block is disposed in the traction groove 61 and slides in cooperation with the traction groove 61. The advantages of this configuration are: with this configuration, the traction block and the traction groove 61 slide in cooperation, forming a flexible transmission connection, which can adapt to the trajectory deviation of the swing of the crank arm 7 and the longitudinal movement of the traction plate 6, avoiding the jamming or stress concentration problems that are prone to occur in rigid connections, and further improving the reliability of transmission; the groove structure increases the tolerance space for the fit, reduces the requirements for the machining accuracy and assembly accuracy of the components, and reduces the risk of transmission failure caused by production and assembly errors; the sliding fit reduces contact wear, the fit clearance can accommodate slight deformation, extends the service life of the traction plate 6 and the crank arm 7, and at the same time ensures the transmission stability after long-term use, and the structure is simple and compact, without occupying additional installation space.

[0017] As a further feature of this embodiment, the traction plate 6 and the transmission plate 5 are connected by a connecting plate 8. The connecting ends of the traction plate 6 and the connecting plate 8, as well as the connecting ends of the transmission plate 5 and the connecting plate 8, are each provided with a connector 53. A pin is provided on the connector 53, and a pin hole 81 is provided on the connecting plate 8. The pin engages with the pin hole 81. The advantages of this design are: the engagement of the pin with the pin hole 81 ensures a tight fit, effectively preventing loosening or displacement during transmission and guaranteeing the stability and accuracy of force transmission; no complex fasteners are required, allowing for direct insertion and fastening during assembly and quick disassembly, significantly improving assembly and maintenance efficiency; by replacing connecting plates 8 of different lengths or specifications, different installation sizes and models of door locks can be flexibly adapted, significantly enhancing structural versatility and reducing the design and manufacturing costs of multi-specification products; the connection structure is simple and compact, does not occupy additional internal space of the door lock, is suitable for narrow installation environments, and has low component processing difficulty, further controlling production costs.

[0018] As a further feature of this embodiment, a first guide groove 52 and a first guide block are provided between the main lock body 1 and the transmission plate 5, and the first guide groove 52 and the first guide block are in sliding engagement. The beneficial effects of this configuration are: with this configuration, the sliding engagement of the first guide groove 52 and the first guide block precisely limits the movement trajectory of the transmission plate 5, avoiding deviation and shaking during its longitudinal movement, and greatly improving structural stability and transmission accuracy; the guide structure can disperse the lateral force during the transmission process, reduce component wear, and ensure smooth operation after long-term use; the structure is simple and does not occupy additional space, does not increase the complexity of door lock assembly, and takes into account both practicality and economy.

[0019] As a further feature of this embodiment, a second guide groove 62 and a second guide block are provided between the secondary lock body 2 and the traction plate 6, with the second guide groove 62 and the second guide block slidingly engaged. The advantages of this configuration are: the sliding engagement of the second guide groove 62 and the second guide block precisely constrains the longitudinal movement trajectory of the traction plate 6, preventing swaying or jamming during operation, and further enhancing the overall structural stability; it can also share the lateral stress transmitted by the traction plate 6, reducing component contact wear and ensuring smooth and reliable transmission after long-term use.

[0020] The above examples are merely one preferred embodiment of this utility model. Ordinary variations and substitutions made by those skilled in the art within the scope of this utility model's technical solution are all included within the protection scope of this utility model.

Claims

1. A secondary lock transmission structure for a motor lock, comprising a main lock body and a secondary lock body, wherein the main lock body is provided with a drive plate and a drive motor for driving the drive plate to slide along the width direction of the main lock body, a main lock tongue is connected to the drive plate, and the secondary lock body is provided with a secondary lock tongue and a linkage plate, the secondary lock tongue being connected to the linkage plate, characterized in that: The linkage plate and the secondary lock body slide together along the width direction of the main lock body. A crank arm is oscillatingly arranged in the secondary lock body. One arm of the crank arm is connected to the linkage plate, and the other arm is connected to a traction plate. The traction plate is arranged along the length direction of the main lock body. A transmission plate is also arranged in the main lock body. The transmission plate is arranged along the length direction of the main lock body and is fixedly connected to the traction plate. A guide groove is inclinedly arranged on the transmission plate. A guide block is arranged on the drive plate. The guide block slides together with the guide groove.

2. The auxiliary lock transmission structure of the motor lock according to claim 1, characterized in that: The traction plate is provided with a traction groove, and the end of the crank arm is provided with a traction block. The traction block is disposed in the traction groove and slides in cooperation with the traction groove.

3. The auxiliary lock transmission structure of the motor lock according to claim 2, characterized in that: The traction plate and the transmission plate are connected by a connecting plate. The connecting end of the traction plate and the connecting plate, as well as the connecting end of the transmission plate and the connecting plate, are respectively provided with a connector. The connector is provided with a pin, and the connecting plate is provided with a pin hole. The pin and the pin hole are inserted into each other.

4. The auxiliary lock transmission structure of the motor lock according to claim 1, characterized in that: A first guide groove and a first guide block are provided between the main lock body and the transmission plate, and the first guide groove and the first guide block are in sliding engagement.

5. The auxiliary lock transmission structure of the motor lock according to claim 1, characterized in that: A second guide groove and a second guide block are provided between the secondary lock body and the traction plate, and the second guide groove and the second guide block slide in cooperation.

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